Overview
Background
Richard Lee is a postdoctoral research fellow in the School of Chemical Engineering at the University of Queensland (UQ), Australia.
He obtained his PhD from the UQ School of Chemical Engineering. His PhD study focussed on grinding and flotation chemistry of copper flotation. Richard’s PhD thesis:
- Identified the fundamental chemistry issue of copper flotation containing high-concentration pyrite, which is a big problem faced by global flotation concentrators
- Proposed a pyrite-selective oxidation method using inorganic radicals to improve the depression of high-concentration pyrite in copper flotation
Currently, Richard is working as a research associate in two Australian Research Council (ARC) Linkage Projects:
- The first project, sponsored by ARC, Newmont and BHP, is focussing on understanding and mitigating the negative effect of process water to improve gold processing during flotation and leaching
- The second project, sponsored by ARC and Vega Industries, is focussing on improving the processing of low-grade copper ores via grinding and flotation chemistry
Richard’s research specialises in base metal grinding and flotation chemistry, surface chemistry, electrochemistry, radical chemistry (Advanced oxidation processes, AOPs) and leaching. He is currently working to apply inorganic radicals in metallurgical processes to improve the extraction and separation of several base and precious metals.
Availability
- Dr Richard Lee is:
- Available for supervision
Fields of research
Qualifications
- Bachelor (Honours) of Chemical Engineering, The University of Queensland
- Doctor of Philosophy, The University of Queensland
Research impacts
Richard’s research helped to identify the core problem of current pyrite depression techniques used in the copper industries and improve the rejection of iron sulphide in base metal flotation. His PhD study also led to a new ARC project, which focuses on pyrite rejection in the presence of high concentrations with the use of reactive oxidative species (ROS).
Works
Search Professor Richard Lee’s works on UQ eSpace
2025
Journal Article
Evaluate the depression of high-concentration pyrite in copper flotation by high-chromium grinding media
Lee, Richard Li Jie and Peng, Yongjun (2025). Evaluate the depression of high-concentration pyrite in copper flotation by high-chromium grinding media. Mineral Processing and Extractive Metallurgy Review, 46 (1), 153-164. doi: 10.1080/08827508.2023.2282007
2024
Conference Publication
Selectively oxidizing and depressing high-concentration pyrite in copper flotation
Lee, Richard Li Jie and Peng, Yongjun (2024). Selectively oxidizing and depressing high-concentration pyrite in copper flotation. XXXI IMPC-International Mineral Processing Congress, Washington, DC United States, 29 September – 3 October 2024. Englewood, CO United States: Society for Mining, Metallurgy and Exploration.
2024
Journal Article
Assessing the depression of high-concentration pyrite in copper flotation by high pH
Li Jie Lee, Richard and Peng, Yongjun (2024). Assessing the depression of high-concentration pyrite in copper flotation by high pH. Minerals Engineering, 209 108651, 1-6. doi: 10.1016/j.mineng.2024.108651
2024
Journal Article
The effect of cathodic surface areas on galvanic interactions between grinding media, chalcocite and pyrite and subsequent mineral flotation
Lee, Richard Li Jie and Peng, Yongjun (2024). The effect of cathodic surface areas on galvanic interactions between grinding media, chalcocite and pyrite and subsequent mineral flotation. Minerals Engineering, 206 108537, 1-8. doi: 10.1016/j.mineng.2023.108537
2023
Journal Article
The influence of sodium sulphate on sodium aluminosilicate solubility in Bayer liquor aiding the desilication process
Vogrin, John, Peng, Hong, Santini, Talitha, Lee, Li Jie and Vaughan, James (2023). The influence of sodium sulphate on sodium aluminosilicate solubility in Bayer liquor aiding the desilication process. Hydrometallurgy, 219 106079, 1-9. doi: 10.1016/j.hydromet.2023.106079
2022
Journal Article
Flotation performance of chalcopyrite in the presence of an elevated pyrite proportion
Lee, Richard Li Jie, Chen, Xumeng and Peng, Yongjun (2022). Flotation performance of chalcopyrite in the presence of an elevated pyrite proportion. Minerals Engineering, 177 107387, 107387. doi: 10.1016/j.mineng.2021.107387
Supervision
Availability
- Dr Richard Lee is:
- Available for supervision
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Media
Enquiries
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